58 Floristik, Geographie, Systematik etc. 



südlichen Teilen Westasiens ausharrten und die sich auch den 

 europäischen Arten der A. parviflora nicht anschliessen. 



Verf. entwirft auch einen Clavis specierum Europaearum und 

 eine Enumeratio, in der wir mit der Synonymik und Verbreitung 

 der einzelnen Arten bekannt werden. Matouschek (Wien). 



Sargent, O. H-, Notes on the life-history of Pterostylis. (Ann. 

 Bot. XXIII. 90. p. 265 274. 2 pls. 1909.) 



Several species of this genus of small terrestrial herbaceous 

 orchids have been studied by the author in Western Australia. 

 During the hot dry summer the globular succulent tubers are buried, 

 but with the winterrains in May a Single shoot grows rapidly and 

 sends out numerous short processes from each internode; these are 

 truncated cones of tissue whose apical layers consist of thinwalled 

 grape-shaped cells which probably absorb food-salts from soil; certain 

 of them give access to a mycelium which fills the cortical cells. 

 The root-system is scanty. A description is given of shoot and tuber 

 development, also vegetative propagation in several species. With 

 the aid of a series of drawings the details of the complex fiower of 

 P. reflexa are described. Fertilisation is effected by insects, which 

 by a spring movement of the labellum are imprisoned, but may 

 escape by means of a tunnel between the column-wings which brings 

 them in contact with the rostellum and anther. The spring of the 

 labellum occurs when certain appendages are touched, and the iri- 

 tability appears to be strictly located. The fiowers are inconspicuous, 

 odourless and devoid of nectar, but there is evidence that a juice 

 secreted in the fiower has an intoxicating effect on insects. Modifi- 

 cations of fiower structure in the respective species are also dealt 

 with. W. G. Smith. 



Schmidt, J., Flora of Koh Chang. Contributions to the 

 knowledge ofthe Vegetation in the GulfofSiam. Part 

 IX. (Bot. Tids., Köbenhavn, XXIX. 2. p. 97—152. 1909.) 



The present part of the Flora Koh Chang contains: 



1. Pahnae, by U. Dammer and O. BeCcari. New species is 

 Daemonorops (sect. Cymbospatha) Schmidtianus Becc. 



2. Lentibulariaceae , by C. H. Ostenfeld. Two species provi- 

 sionally published in Fedde's Repertorium are redescribed and 

 elucidated by drawings of bladders and seeds (Utricularia siamensis 

 Ostf., U. bosminifera Ostf.). 



3. Lichenes, by Edw. A. Wainio (p. 104 — 151), already reviewed 

 (B. C. 111. p. 275). C. H. Ostenfeld. 



Sehröter, C, Eine Exkursion nach den Canarischen In- 

 seln. (Verh. Schweiz, natf. Ges. Glarus. p. 124—188. 1908.) 



Narration d'un voyage scientifique de six semaines fait en 1907, 

 en compagnie du Dr. Rikli, aux lies Canaries, avec expose' des 

 rdsultats botaniques du voyage. 



Trente et une süperbes vues photographiques de formations v£- 

 getales ou de types vegetaux illustrent ce travail. M. Boubier. 



Smith, W. W., Note on a peculiar tussock formation» 

 (Trans. Proc. bot. Soc. Edinburgh, XXIII. III. p. 234—235. 1 pl. 1904.) 



In a marsh in St. Marys, Isles of Scilly, Carex paniculata, was 



